YM

Yasushi Miyoshi

SC Sanyo Electric Co.: 2 patents #2,557 of 6,347Top 45%
Overall (All Time): #2,356,411 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4428996 Diaphragm for speaker Yasuhiro Ishii 1984-01-31
4308094 Diaphragm for speaker and method of producing same Yasuhiro Ishii 1981-12-29